What changed, release by release

• hop alias <package> [version] — hot-swap a single tool to a version you've had installed before, without touching the rest of the active set. Every version hop has installed stays in the store, so this is a symlink swap: instant, no download.
• hop gc gains prune and clean aliases, for anyone coming from Homebrew or npm.
• A real curl | sh install script (scripts/install.sh), checksum-verified against each release's SHA256SUMS.
• hop now greets a fresh install with a short first-run banner instead of jumping straight into output.
• hop self-update — checks GitHub in the background at most once a day and applies the update in one atomic swap when you ask.
• Four new documentation pages — Commands, Architecture, Relocation, Migrate guide — plus a real charset fix on the site.

• Fixed a wide sweep of Homebrew bottle relocation bugs found by actually running installed packages on both platforms — including a Linux bug where relocated bottles never ran at all, and a Python PYTHONHOME fix.
• Hardened the recipe index generators: each one previously kept its own duplicated struct, which could silently drop fields the others set. The index now preserves structure instead of manually re-syncing it.
• Fixed a release workflow bug where a manually-triggered build could tag the wrong commit, producing a release whose checksums didn't match its own assets.
• The built-in recipe index grew to 284 recipes and 1,048 verified artifacts across all four supported platforms.

Added non-Linux, non-cloud image recipes: freebsd-vm and raspios-lite.

Added OS/VM image support — a new package kind hop can pull and verify, alongside ordinary CLI tools.

Expanded the recipe index from 32 to 62 packages (236 artifacts), and linked the live site from the README.

First public release: the content-addressed store, generations, atomic install/upgrade/remove, and instant rollback.